The Cub 7000 Series have a problem with starting. My 7272 would sometimes start and sometimes not. I did find out though that if your lights are coming on dim or not at all, replace your battery cables. They will corrode down inside where you can see it and if it doesn't get full voltage at starting, it won't start.
Also, if you have a problem with the starter just clicking, there are a couple of schematics floating around as to how to fix the problem by wiring in a relay and coming directly off of the battery. One of the member on here sent me the schematic so I decided to tear into it one day. After taking the dash all apart, I found a hidden button the previous owner had wired in. He used his toe to push it in. Anyways, I went to Advance Auto and bought a waterproof pushbutton. I mounted it right above the ignition switch. Using #10 wire, I ran a wire from the battery side of the starter to the switch, then back down to the solenoid. No relays at all. So now all I do is turn the key to the on position, push the button, and it starts every single time. Using the pushbutton is no different than jumping the solenoid with a screwdriver like the old days.
